Why Trump’s Iowa win shows it’s hard to dislodge him from becoming GOP nominee

Donald Trump was projected as the runaway winner in Iowa’s Republican presidential caucuses on Monday night, while Florida Gov. Ron DeSantis was projected as coming in second place. Nikki Haley, a former ambassador to the U.N. and governor of South Carolina, was on track to finish third, and entrepreneur Vivek Ramaswamy appeared on course for fourth. Ramaswamy subsequently announced he’d quit the race and endorsed Trump. Trump has enjoyed big leads for months in most polls of the early states, so a main focus for Iowa’s first-in-the-nation voting has been who would come in second — and how close that candidate could get to the…